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Motion blur per photoshop?

Posted: Tue Dec 30, 2008 5:00 pm
by Micha
Hi,

do somebody know a plugin for photoshop or a tutorial that helps me to create a motion blur, so that objects are looking like moving in one direction and not shaked like it looks per standard photoshop filter?

Attached a simple example of a big black point. I'm looking for a visible point with motion blur in one direction only, like motion lines at cartoon sketches. In real life this could be done per shooting a photo with flash light and long exposure time (flash at the end of exposure time)

Image

Here an image that I found at the web, that show a blur like I'm looking for. (not a nice example)
Image

But here the ball show it quite good
Image

Best would be, if a vector line for the motion could be drawn and used by a tool for motion blur creation.

Posted: Tue Dec 30, 2008 5:14 pm
by Micha
... here I play a little with the "wind" filter, but this filter give me not enough control (direction, intensity, effect). The filter show what could be done in this direction of effect. Do somebody know a better wind filter?

Image

Posted: Fri Jan 02, 2009 6:31 pm
by simmsimaging
The M-blur options in Photoshop are limited for sure. There used to be a plugin callled Velociraptor (or something like that) that gave you some other options.

The best way that I know of now is to copy your object to a layer and do the motion blur on that. Then move it over and/or stretch it in one direction and mask/erase the side you don't want. Usually you then need to also mask out the trailing edge of the sharp version on the lower layer so that the edge fades into the m-blur. Bit harder this way, but not much and lots of control.

Adding curvature has to be done as a post-blur transformation, which is pretty easy to do with the image warp tools in Pshop, but it's never the same as real 3D blur.

The only other way I use would be to tweak the settings of a smudge brush a bit and then do it by hand. I often do that with smaller things and to create variations in direction to look more like real 3D motion blur, but for bigger elements it can be difficult that way.

Hope that helps.
b

Posted: Sat Jan 03, 2009 6:03 pm
by def4d
Just an idea

In the first exemple you give, you could use the black point to mask the left point of the blurred one?

Posted: Mon Jan 05, 2009 5:51 pm
by Micha
Thank you for the suggestions. I found the plugin here:

http://www.andromeda.com/main/velociraptor.php

and will test it.

:D

Posted: Tue Jan 06, 2009 12:58 pm
by kami
hi micha
i'd be interested in your results. can you post them here if it works?
cheers, kami

Posted: Tue Jan 06, 2009 3:58 pm
by Micha
The velociraptor demo don't allow to see the result in original resolution, so it's not easy to say, how good it works. Here a screenshot (seems to be a quite old tool):
Image

And here a hand made version:
Image
I copied the layer, set it to "darken", apply a motion blur and move the layer to the left. It's a pity that PS don't allow to motion blur along a curve.